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本文用现代实验手段分析了北京地区出土的27枚磬折“匽”刀和4枚尖首刀。通过对检测结果和有关文献的研究,指出:先秦燕国磬折“匽”刀基本上是以铅为主的铅铜(Pb-Cu)二元合金,并对磬折刀中的少量锡和战国时期燕国大量用铅铸币的原因作了初步的探讨。
In this paper, with the help of modern experimental methods, 27 pieces of broken knives and four sharp knife unearthed in Beijing area are analyzed. Through the research on the test results and related literatures, it is pointed out that the pre-Qin Yan Kuo folding knife is basically a lead-based lead-copper (Pb-Cu) binary alloy and a small amount of tin Yan State during the Warring States Period, a large number of reasons for the use of lead coins made a preliminary discussion.